# Focus Clocks by Tamdaw vs MD Preview

The clearest difference is in-app purchases: MD Preview at none against Focus Clocks by Tamdaw's 2. MD Preview also leads on device support (3 vs 1). Focus Clocks by Tamdaw's advantage is update cadence (daily vs every 4 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Focus Clocks by Tamdaw sells 2 one-off in-app purchases. MD Preview asks for nothing beyond the download.

Focus Clocks by Tamdaw ships an update daily, MD Preview every 4 weeks. Both last shipped on October 8, 2026.

## The numbers

| Metric | Focus Clocks by Tamdaw | MD Preview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 weeks |
| Size | 15 MB | 4 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Kuan-Ting Lin](https://appshunter.io/developer/1561464552) | [DILEK EMINOGLU](https://appshunter.io/developer/6772718297) |

## What reviewers say

### Focus Clocks by Tamdaw

[App page](https://appshunter.io/ios/app/focus-clocks-by-tamdaw/id6477335478)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cat | $4.59 | one-time |
| Dog | $4.59 | one-time |


### MD Preview

[App page](https://appshunter.io/ios/app/md-preview/id6790422676)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Focus Clocks by Tamdaw free?

Focus Clocks by Tamdaw is free to download, with in-app purchases available.

### Is MD Preview free?

MD Preview is free to download, with no in-app purchases.

### Do Focus Clocks by Tamdaw or MD Preview have ads?

Neither Focus Clocks by Tamdaw nor MD Preview shows ads.

### Which is updated more often, Focus Clocks by Tamdaw or MD Preview?

Focus Clocks by Tamdaw ships an update daily, and MD Preview every 4 weeks. Most recently, Focus Clocks by Tamdaw was updated on October 8, 2026 and MD Preview on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*